87085032
Jun 27, 2016
Jan 17, 2017
stationary direct current power systems composed of stationary battery chargers and batteries for electric utility substations; enclosures for stationary direct current power systems; components and modules for stationary direct current power systems, namely, stationary battery chargers, power distribution panels, and electronic monitor modules for monitoring electric current and electrical signals; mobile direct current power systems composed of stationary battery chargers and batteries for supplying backup direct current power to stationary direct current power systems
Electrical and Scientific Apparatus